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Rave Reviews

WANTED: Your Cores

Got spent crank and / or cylinder cores? We'll take 'em! And we'll compensate you for any core we receive that can be rebuilt. Get in touch and send or bring it on in!

Tech Tips

Tech Tip #2

Air Filters: The key ingredient to having a motor run great and to increase it's longevity is a clean air filter. Most people neglect this simple maintenance task. Try riding your dirt bike with your mouth three quarters closed and see how well you perform. You should always have readily available, pre-oiled, clean filters. Here's how...

Perform to perfection with our top-notch professional:

Don't mess with the rest - Use the now recognized best... Dead True! No Hammers! STR has developed a system to assemble single cylinder cranks the way the factories build theirs. Rebuilt with a max runout of .001. We stock and use ProX Genuine Racing Parts for YZ's, KX's and RM's from '90 to 2011.

We're your one-stop-shop for 85cc Long Rods, Super Minis and Super Mini Supremes. No need to buy new cranks and cylinder cores - we can rebuild them for you, saving you money. And, we always give you your parts back so you know what was wrong and can be sure of what was replaced.

Tired of paying $2000 and ↑ every time you blow up your 250F. Tired of participating in the P.C.P.? That's the "parts counter program" that the factories have created with the four stroke revolution. They try to convince you that you can't compete on a two stroke. We disagree!!! The transition from an 85 or 105 to a 250F is too great. If you want to polish your skills for the future, we recommend staying on a 125 or better yet a 144/153.